detrital


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Related to detrital: detrital minerals, Detrital sediment

de·tri·tus

 (dĭ-trī′təs)
n. pl. detritus
1. Loose fragments or grains that have been worn away from rock.
2. Disintegrated or eroded matter; debris: the detritus of past civilizations.

[French détritus, from Latin dētrītus, from past participle of dēterere, to lessen, wear away; see detriment.]

de·tri′tal (-trīt′l) adj.
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References in periodicals archive ?
Biological and environmental scientists cover the Breitenbach and its catchment, environmental characteristics, detrital energy sources, primary producers, bacteria and fungi, fauna, and ecosystem Breitenbach.
Petro-Reef Resources Ltd (TSX VENTURE:PER), a Calgary- based crude oil and natural gas exploration and production company, has cased its 11-12-56-27w4 well as a potential Detrital oil well.
Earlier studies that determined the root - all that remains of an earlier mountain chain - was at least Precambrian in age relied on indirect evidence: outcrops exposed to the north of the mountains, detrital zircons retrieved from ice cores, and seismic measurements that revealed a crustal thickness of 45 to 60 kilometers.
Due to this lack of instream structure for primary producers (e.g., algae), benthic invertebrate consumers may be reliant on detrital inputs as the primary basal resource (Roeding and Smock, 1989) and as habitat (Johnson et al., 2003).
Detrital zircon studies reported by Dickinson and Gehrels (2003) confirm a suggestion made first by Dickinson (1988) that much of the thick Paleozoic and early Mesozoic detrital succession present in the Colorado Plateau area (including the units exposed in the Grand Canyon) were derived by uplift and erosion of the eastern continental margin.
In sections on Mezozoic-Cenozoic, Palaeozoic/Neoproterozoic, and Proterozoic orogens, they explore such topics as Andean flat-slab subduction through time, plate tectonics of the Alpine realm, constraints from detrital zircon age data on the palaeozoic palaeogeography of Mexico, ocean mafic complexes, Neoproterozoic reworking of the Palaeoproterozoic Capricorn Orogen of Western Australia and implications for the amalgamation of Rodinia, and the Palaeoproterozoic Trans-Hudson Orogen as a prototype of modern accretionary processes.
In a study of the clay mineralogy of the Pilliga Sandstone, Arditto (1983) demonstrated an abundance of low birefringent clay material filling detrital grain fractures and pore spaces.
According to the sedimentary facies and petrology, the mass fraction in southern steep of palaeolacus in Gaoyou is high in detrital mineral, moderate in the clay mineral, and low in carbonate mineral, and the mass fraction of Si, Fe is high, Al, V is moderate, Ca, Sr, Ba is low.
Most of the technical words used are defined in the text and there is a helpful glossary at the back, but if the words, "eustatic," "detrital" or "clastic" do not conjure an image in your mind, you may find yourself flipping pages for definitions.
The presence of detrital and/or biotic material, including peritrich colonies, on the cranium and its appendages may interfere with sensory functions of those sensilla, diminishing larval ability to detect suitable prey.